US7744114B2 - Pushchair for elderly or disabled adults foldable in two planes - Google Patents

Pushchair for elderly or disabled adults foldable in two planes Download PDF

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Publication number
US7744114B2
US7744114B2 US11/667,141 US66714105A US7744114B2 US 7744114 B2 US7744114 B2 US 7744114B2 US 66714105 A US66714105 A US 66714105A US 7744114 B2 US7744114 B2 US 7744114B2
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Prior art keywords
section
end portion
vertical tubular
tubular section
arm
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US11/667,141
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US20080093821A1 (en
Inventor
Luigi Menichini
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Ormesa Srl
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Ormesa Srl
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Assigned to ORMESA S.R.L. reassignment ORMESA S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MENICHINI, LUIGI
Publication of US20080093821A1 publication Critical patent/US20080093821A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0816—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair
    • A61G5/0825—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding side to side, e.g. reducing or expanding the overall width of the wheelchair comprising a scissor-type frame, e.g. having pivoting cross bars for enabling folding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
    • A61G5/0833—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding front to back, e.g. reducing or expanding the overall depth of the wheelchair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
    • A61G5/0883—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having locking means for maintaining a folded or unfolded condition

Definitions

  • the present patent application refers to a push chair for elderly or disabled adults with easily compactable structure.
  • the object of the invention falls within the sector of push chairs used to transport elderly or disabled adults, which are mainly composed of a metal tubular structure capable of being compacted in order to reduce volume in non-operating conditions.
  • push chairs of this type are made of two identical tubular frames, with basically triangular plan, designed to be mounted one next to the other one to form the sides of the push chair.
  • each side is obtained with three different section of metal tube, which are hinged in such a way as to form the three sides of a right-angled triangle.
  • the triangular structure includes a longer cathetus in the rear tubular section, with basically vertical direction and designed to support an upper knob to operate the push chair; a shorter cathetus in the lower tubular section, with basically horizontal direction, pivoted on the back on the lower end of the vertical section; and finally the hypotenuse in a tubular section, with inclined direction, basically designed to connect the upper end of the rear/vertical section and the front end of the lower/horizontal section.
  • the lower end of the rear vertical section of each side is designed to support a lower wheel, while a second wheel is mounted on the same side under the front end of the lower tubular section, with basically horizontal direction.
  • the seat and backrest both with collapsible structure, are fixed between two tubular sides of this type.
  • pantograph-shaped crosspieces of which one cross-piece is positioned on the back of the push chair (basically at the height of the back wheels) and the other crosspiece is positioned on the front of the push-chair (in slightly more internal position with respect to front wheels).
  • the crosspieces maintain the push chair in operating conditions, preventing the two sides from getting closer accidentally. However, once they are unblocked, they permit to bring the two sides close, until they touch each other, in order to compact the push chair for transportation, storage, and similar purposes.
  • Closing of the two sides in terms of depth is made possible by the fact that, in each side, the two tubular sections/catheti fold and translate in such a way that they basically get in contact with the third tubular section/hypotenuse so that the front and the back wheel of each side are in very closed position and the push chair can slide on the four wheels, regardless of being compacted.
  • the big volume in terms of depth is due to the perfect alignment, although at close distance, of the two front wheels with the back wheels; and the big volume in terms of height is due to the fact that the tubular section of each side around which the other two tubular sections are compacted (which determines the total height of the push chair in compacted position) is the tubular section/hypotenuse with considerable length.
  • the lower ends of the two pairs of tubular sections forming the pantograph-shaped crosspieces are associated with cylindrical sleeves that externally slide on the tubular sections of the corresponding sides, during reciprocating actuation of the crosspieces.
  • the two footrest platforms can be laterally rotated and placed edgeways next to the sides; this solution is satisfactory only when the push chair is closed completely and stored away.
  • the first purpose of the present invention is to reduce the height of the push chair in compacted position; this result has been obtained by compacting each side with respect to the rear tubular vertical section, rather than the front tubular section/hypotenuse, in such a way that the other elements of the push chair that are being compacted against the push chair do not protrude either in lower or upper position.
  • each vertical section ends with a traditional upper handle used to operate the push chair and supports one of the back wheels in lower position.
  • the compacting modes of the push chair of the invention are such that, once the push chair has been compacted, the front wheels are places above the back wheels, at a considerable distance from the ground, and no longer in parallel position with the back wheels.
  • the push chair of the invention is characterised by considerable manoeuvrability, also in view of the fact that—as mentioned earlier, all the other elements, being mutually compacted, are contained in the intermediate space between the handles and the wheels of the two rear vertical sections.
  • Another purpose of the present invention is to minimize the efforts required to compact the push chair and reduce risks of immediate wear of the metal frame; this result has been obtained by devising a new pivoting system between the ordinary pantograph-shaped crosspieces and the tubular sections of the two sides.
  • Last, but not least, another purpose of the invention is to minimise the volume in width of the push chair of the invention in operating position, including with the user on board.
  • the two footrest platforms are traditionally rotated towards the external face of the sides, and are additionally exactly housed in a suitable space located in the structure of the tubular sides, in such a way that they do not protrude with respect to the sides.
  • FIGS. 1A and 1B are respectively a front view (with enlargement) and a side view (with enlargement) of the bare frame of the push chair of the invention, in operating position;
  • FIGS. 2A and 2B are respectively a front view and a side view (with enlargement) of the bare frame of the push chair of the invention, in an intermediate phase during compaction;
  • FIGS. 3A and 3B are respectively a front view and a side view (with enlargement) of the bare frame of the push chair of the invention, in its final compacted position;
  • FIGS. 4A and 4B are respectively a front view and a side view of the push chair of the invention complete with seat and backrest;
  • FIG. 4C is a partial cross-section with plane X-X (with enlargement) of FIG. 4A .
  • the push chair of the invention ( 1 ) is traditionally formed of two sides with tubular structure (FT) capable of being alternatively brought into a spread operating position (shown in FIG. 1A ) and in a close resting position (shown in FIG. 3A ) by means of the interposition of two pantograph-shaped crosspieces ( 20 , 30 ).
  • FT tubular structure
  • the first crosspiece ( 20 ) is higher than the second crosspiece ( 30 ) and is located on the back of the push chair ( 1 ), while the second crosspiece ( 30 ) is located towards the front of the push chair ( 1 ).
  • each side with tubular structure (FT) comprises a bearing element formed of a rear tubular section ( 40 ) with basically vertical direction.
  • a wheel ( 41 ) is fixed on the lower end of the vertical tubular section ( 40 ), while the upper end ( 40 a ) of the vertical tubular section ( 40 ), preferably folded backwards, ends with a handle ( 42 ); in particular, the backwards folded section ( 40 a ) is normally used to fix one of the lateral borders of a backrest (SC) with collapsible structure.
  • the wheel shown in the figure belongs to the posterior side (FT) and not to the side (FT) in the foreground.
  • FIG. 1B the wheel of the foreground side has been eliminated to ensure a better representation of the different elements of the side.
  • an arm ( 53 ) facing the front of the push chair ( 1 ) is hinged at half height of the vertical tubular section ( 40 ) inside a suitable fork ( 53 a ) and with respect to a pin with horizontal axis ( 54 ), being designed to support the lateral border of a seat (SE) with collapsible structure.
  • a pair of identical arched brackets ( 43 ), facing the bottom and the front of the push chair ( 1 ), with hook-shaped outline, is fixed along the vertical tubular section ( 40 ), in intermediate position between the arm ( 53 ) and the wheel ( 41 ).
  • the upper/rear ends of the arched brackets ( 43 ) are fixed on opposite sides against the vertical tubular section ( 40 ), while the lower/front ends are used to hinge, with respect to a pin with horizontal axis ( 44 ), a tubular crossbar ( 60 ) with slightly ascending direction towards the front of the push chair ( 1 ).
  • the front end of the crossbar ( 60 ) is hinged, with respect to a pin with horizontal axis ( 61 ), towards the lower end of an additional vertical tubular section ( 70 ), with curved outline and articulated structure, which supports a swivel wheel ( 71 ) in lower position.
  • the articulated tubular section ( 70 ) extends from the swivel wheel ( 71 ) to the backwards folded section ( 40 a ) of the rear vertical section ( 40 ).
  • the first section ( 70 a ) is pivoted, with respect to a suitable pin with horizontal axis ( 73 ), with the second section ( 70 b ) of the vertical section ( 70 ); it being provided that the section ( 70 b ) is in turn pivoted in upper position, with respect to a pin with horizontal axis ( 74 ), with the third section ( 70 c ) of the vertical tubular section ( 70 ), which is pivoted on the opposite end, with respect to a pin with horizontal axis ( 75 ) in external position with the upper section ( 40 a ), slightly inclined backwards, of the rear vertical tubular section ( 40 ).
  • the upper section ( 70 c ), being suitably upholstered, of the articulated vertical section ( 70 ) also acts as armrest (B).
  • intermediate ( 70 b ) and upper ( 70 c ) parts of the articulated vertical section ( 70 ) are pivoted with compass-shaped configuration.
  • a sleeve ( 80 a ) is mounted on the lower section ( 70 a ), above the point where the entire articulated vertical section ( 70 ) and the lower crossbar ( 60 ) are hinged, with possibility of rotating by 180°, to support a projecting footrest platform ( 80 ).
  • the two tubular sides (FT) are connected by means of the aforementioned pantograph-shaped crosspieces ( 20 , 30 ).
  • each crosspiece ( 20 , 30 ) is formed of a traditional pair of mutually hinged rods, with respect to suitable pins ( 20 a , 30 a ) with basically horizontal axis.
  • the upper ends ( 21 ) of the rods of the rear crosspiece ( 20 ), i.e. the highest one, are pivoted with respect to pins with horizontal axis ( 22 ) on corresponding wings ( 45 ) protruding edgeways on the back of the upper section ( 40 a ) of the vertical tubular section ( 40 ), while the lower ends ( 23 ) are hinged, with respected with pins with horizontal axis ( 24 ), on the rear ends ( 62 ) of the lower tubular crossbars ( 60 ).
  • the pins ( 22 , 24 ) used to pivot the rods of the crossbar ( 20 ) with respect to the two sides (FT) have an orthogonal position to the pin ( 20 a ) used to mutually pivot the rods.
  • the upper ends ( 31 ) of the front crossbar ( 30 ) are pivoted, with respect to pins with horizontal axis ( 32 ), on cylindrical bushes ( 55 ) mounted in lower position on the arms ( 53 ) that support the seat (SE), as expressly shown in the enlargement of FIG. 1A , while the lower ends ( 33 ) are pivoted, with respect to pins with horizontal axis ( 34 ), on the lower tubular crossbars ( 60 ) of the sides (FT), in more internal position with respect to the hinging point between the latter and the front vertical sections ( 70 ).
  • pivoting pins ( 32 , 34 ) have an orthogonal position with respect to the pin ( 30 a ) used to mutually pivot the rods of the front crosspiece ( 30 ).
  • the hinging point between the rods of the front crosspiece ( 30 ) and the two tubular crossbars ( 60 ) is located in a large concave section ( 63 ), with inwards direction, located in each crossbar ( 60 ).
  • the push chair of the invention ( 1 ) can be closed by means of the aforementioned levers by bringing the two tubular sides (FT) in very close position and the articulated front vertical section ( 70 ) on the back of the front vertical section ( 40 ) because of rototranslation from down upwards and from the front backwards.
  • the push chair ( 1 ) can be closed by preferably using the two arms ( 53 ) designed to support the seat (SE), after releasing a safety lock (not shown in the enclosed figures) that rigidly constrains the front vertical sections ( 70 ) of the tubular sides (FT):
  • the two arms ( 53 ) are rotated upwards and backwards by about 90°, by preferably using their front ends.
  • the rotation of the arms ( 53 ) determines the simultaneous movement of the two sides (FT), which are brought close, and the upwards backwards rotation of the articulated sections ( 70 ) of the sides (FT), so that the sections ( 70 ) are brought in close position parallel to the corresponding rear sections ( 40 ), although staggered upwards.
  • the aforementioned figures also show that the two sides (FT) are gradually brought close while the two rods of the two pantograph-shaped crosspieces ( 20 , 30 ) are progressively closed, with a progressive higher height of the two crosspieces ( 20 , 30 ).
  • each side (FT) is pivoted, with respect to a pin with horizontal axis ( 44 ), to the corresponding pair of arched brackets ( 43 ) fixed on the rear vertical section ( 40 ).
  • FIGS. 1B , 2 B and 3 B show, in particular, the progressive effects of the thrust discharged when closing the rear crosspiece ( 20 ) on the rear ends ( 62 ) of the lower tubular crossbars ( 60 ) of the two tubular sides (FT).
  • the higher height is recovered by the fact that, within each side (FT), the upward traction of the arm ( 53 ) that supports the seat (SE) determines the corresponding rise of the tubular crossbar ( 60 ); this is due to the fact that each arm ( 53 ) is joined to the crossbar ( 60 ) by means of the crosspiece ( 30 ).
  • the simultaneous upward rotation of the two elements ( 53 , 60 ) also determines an increase of the distance between the pins ( 34 ), which are used to pivot the lower ends ( 33 ) of the rods of the crosspiece ( 30 ) with the tubular crossbars ( 60 ), and the pins ( 32 ), which are used to pivot the upper ends ( 31 ) of the rods with respect to the bushes ( 55 ) located in lower position on the arms ( 53 ) that support the seat (SE).
  • the articulated parts ( 70 a , 70 b , 70 c ) tend to progressively lose their initial alignment, due to the presence of the pins ( 72 , 73 , 74 ).
  • the lower section ( 70 a ) and the intermediate section ( 70 b ) of the articulated front section ( 70 ) are perfectly aligned (with a slightly curved direction), with the upper end of the intermediate section ( 70 b ) at the same height as the handle ( 42 ) of the fixed rear section ( 40 ).
  • the upper section ( 70 c ) of the articulated section ( 70 ) Being constrained next to the fixed vertical section ( 40 ), the upper section ( 70 c ) of the articulated section ( 70 ) is brought in vertical position parallel to the two consecutive parts ( 70 a , 70 b ).
  • This last position of the three parts of the articulated section ( 70 ) is made possible by means of the compass-shaped hinging between the intermediate section ( 70 b ) and the upper section ( 70 c ).
  • the front wheels ( 71 ) are placed inside the concave parts ( 63 ) of the lower tubular crossbars ( 60 ) of the corresponding sides (FT).
  • FIG. 3B shows the position that can be given to the footrest platforms ( 80 ) in resting position.
  • each footrest platform ( 80 ) can rotate from its projecting operating position in front of the push chair by approximately 180°, together with the supporting arm ( 81 ), and can be brought next to the side (FT).
  • the same platform ( 80 ) can also be brought in edgeways position in close contact with the tubular side (FT) to minimize lateral projections.
  • the concave parts ( 63 ) situated along the lower crossbars ( 60 ) of the two tubular sides (FT) of the push chair ( 1 ) have a very important function when the push chair is in operating position with the user on board.
  • the two platforms ( 80 ) can be used to house the two platforms ( 80 ), after rotating them laterally in edgeways position; due to this special position, the two platforms do not protrude on the sides of the push chair of the invention ( 1 ), thus making manoeuvring easier and safer when the push chair is getting close to a car, a water closet, etc.
  • the push chair ( 1 ) could operate according to the opening/closing modes as described above also in a version without the intermediate ( 70 b ) and upper ( 70 c ) parts of the front articulated sections ( 70 ) of the tubular sides (FT), that is to say in a constructive embodiment without armrests (B).

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Rehabilitation Tools (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Special Chairs (AREA)
US11/667,141 2004-11-08 2005-11-14 Pushchair for elderly or disabled adults foldable in two planes Active 2027-03-24 US7744114B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT000133A ITMC20040133A1 (it) 2004-11-08 2004-11-08 Passeggino per adulti anziani o disabili dotato di una struttura facilmente compattabile
ITMC2004A0133 2004-11-08
MC2004A000133 2004-11-08
PCT/IT2005/000641 WO2006048913A1 (en) 2004-11-08 2005-11-04 Push chair for elderly or disabled adults foldable in two planes

Publications (2)

Publication Number Publication Date
US20080093821A1 US20080093821A1 (en) 2008-04-24
US7744114B2 true US7744114B2 (en) 2010-06-29

Family

ID=35889014

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/667,141 Active 2027-03-24 US7744114B2 (en) 2004-11-08 2005-11-14 Pushchair for elderly or disabled adults foldable in two planes

Country Status (10)

Country Link
US (1) US7744114B2 (de)
EP (1) EP1809227B1 (de)
CN (1) CN101056600B (de)
AT (1) ATE429889T1 (de)
DE (1) DE602005014260D1 (de)
DK (1) DK1809227T3 (de)
ES (1) ES2328163T3 (de)
IT (1) ITMC20040133A1 (de)
PL (1) PL1809227T3 (de)
WO (1) WO2006048913A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220378633A1 (en) * 2021-05-28 2022-12-01 Leaderstat, Ltd. Wheelchair

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7950684B2 (en) * 2006-10-25 2011-05-31 Jaimie Borisoff Wheelchair side guards
CN103126828A (zh) * 2013-02-16 2013-06-05 周兴强 便携式折叠轮椅
US11376173B2 (en) 2016-12-15 2022-07-05 The World's Only Carry-On Wheel Chair, Llc Wheeled chair
US11364163B1 (en) 2021-09-28 2022-06-21 Jay Foonberg Transport chair arranged for storage in passenger aircraft carry-on luggage

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US3390893A (en) * 1965-07-20 1968-07-02 Maclaren Owen Finlay Structures for folding baby-carriages, chairs, and the like
US4062555A (en) * 1976-11-02 1977-12-13 Peng Luke Shih Cheng Structure for foldable baby carriage
US4415202A (en) * 1981-10-26 1983-11-15 Pew Melvin E Wheelchair elevating apparatus enabling a user to lift himself from the floor to a wheelchair seat
US4572576A (en) * 1984-08-20 1986-02-25 Quadra Wheelchairs, Inc. Wheelchair with swingable foot support assemblies
US4640519A (en) * 1980-07-31 1987-02-03 Jean Bigo Light push chairs of the foldable type
US4730842A (en) * 1986-04-18 1988-03-15 Wheel Ring, Inc. Adjustable wheelchair
US4790553A (en) * 1987-11-16 1988-12-13 Motion Designs, Inc. Lightweight wheelchair having swing-away footrest assembly
US5244223A (en) * 1992-02-03 1993-09-14 Toshifumi Uchiyama Wheelchair
USD355874S (en) * 1993-10-12 1995-02-28 Nelson David G Baby stroller
USD427550S (en) * 1999-03-04 2000-07-04 Hsueh-Li Lee Stroller
US6113128A (en) * 1997-07-11 2000-09-05 Convaid Products, Inc. Mobile seating arrangement
US6464242B2 (en) * 2001-01-31 2002-10-15 Combi Corporation Folding stroller
US20020171227A1 (en) * 2001-05-18 2002-11-21 Katoji Co., Ltd. Folding baby carriage
US7178822B2 (en) * 2004-04-30 2007-02-20 Wonderland Nurserygoods Co., Ltd. Stroller frame foldable in two directions

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GB1446845A (en) * 1972-11-01 1976-08-18 Gannet Holdings Ltd Collapsible volume frame structures
US4025088A (en) * 1976-04-13 1977-05-24 Rothschild Barbara G Folding wheelchair
GB2200328B (en) * 1987-01-28 1991-05-15 Spastics Soc Lightweight foldable wheelchair
SI9400242A (en) * 1994-05-30 1995-12-31 Vladimir Markovic Collapsible wheelchair frame
CN1507847A (zh) * 2002-12-18 2004-06-30 高禹丰 一种可折叠电动轮椅

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390893A (en) * 1965-07-20 1968-07-02 Maclaren Owen Finlay Structures for folding baby-carriages, chairs, and the like
US4062555A (en) * 1976-11-02 1977-12-13 Peng Luke Shih Cheng Structure for foldable baby carriage
US4640519A (en) * 1980-07-31 1987-02-03 Jean Bigo Light push chairs of the foldable type
US4415202A (en) * 1981-10-26 1983-11-15 Pew Melvin E Wheelchair elevating apparatus enabling a user to lift himself from the floor to a wheelchair seat
US4572576A (en) * 1984-08-20 1986-02-25 Quadra Wheelchairs, Inc. Wheelchair with swingable foot support assemblies
US4730842A (en) * 1986-04-18 1988-03-15 Wheel Ring, Inc. Adjustable wheelchair
US4790553A (en) * 1987-11-16 1988-12-13 Motion Designs, Inc. Lightweight wheelchair having swing-away footrest assembly
US4790553B1 (de) * 1987-11-16 1990-12-25 Motion Designs Inc
US5244223A (en) * 1992-02-03 1993-09-14 Toshifumi Uchiyama Wheelchair
USD355874S (en) * 1993-10-12 1995-02-28 Nelson David G Baby stroller
US6113128A (en) * 1997-07-11 2000-09-05 Convaid Products, Inc. Mobile seating arrangement
USD427550S (en) * 1999-03-04 2000-07-04 Hsueh-Li Lee Stroller
US6464242B2 (en) * 2001-01-31 2002-10-15 Combi Corporation Folding stroller
US20020171227A1 (en) * 2001-05-18 2002-11-21 Katoji Co., Ltd. Folding baby carriage
US7178822B2 (en) * 2004-04-30 2007-02-20 Wonderland Nurserygoods Co., Ltd. Stroller frame foldable in two directions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220378633A1 (en) * 2021-05-28 2022-12-01 Leaderstat, Ltd. Wheelchair
US12390377B2 (en) * 2021-05-28 2025-08-19 Leaderstat, Ltd. Wheelchair

Also Published As

Publication number Publication date
US20080093821A1 (en) 2008-04-24
EP1809227B1 (de) 2009-04-29
DK1809227T3 (da) 2009-08-17
ATE429889T1 (de) 2009-05-15
EP1809227A1 (de) 2007-07-25
CN101056600B (zh) 2010-05-26
WO2006048913A1 (en) 2006-05-11
CN101056600A (zh) 2007-10-17
DE602005014260D1 (de) 2009-06-10
ITMC20040133A1 (it) 2005-02-08
PL1809227T3 (pl) 2009-09-30
ES2328163T3 (es) 2009-11-10

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